A Division of Lippert Components
BED LIFT INSTALLATIONPlug & Play Models
LIFT FRAME INSTALL:
1. System must be installed squarely, at the same height side to side and
at the same distance front to back
in the RV with vertical rails parallel
side to side. Leave wooden
packing strips in place until
system is secured to the RV.
Motor
ConnectingShaft
Vertical
Rails (4)
(C-Channels)
2. Sufficient backing must be
incorporated within the walls of the RVto support the sheer load of the
bed lift with bed platforms
installed. The bed lift is rated at
600 lbs per platform attachment
(static load).
3. Screws / bolts of sufficient size (1/4” diameter recommended)
must be used to safely meet the
above referenced load requirements
must not interfere with any moving
parts of the mechanism.
Screws / bolts should be used in ALL
mounting locations to secure the vertical rails.
Use the larger holes for mounting as the smaller holes are alternate mounting locations for the upper bunk stop blocks.
The number of mounting holes will vary according to the
vertical rail length of the system being installed. However, it
is imperative that the double mounting holes at each end of
the vertical rail be used. These horizontally orientatedholes prevent rail twist.
CAUTION: When installing lower mounting screws/bolts in
the vertical rail below the motor containing the micro stop
switches, be sure that the micro stop switch wire at the bottom of the rail is not pinched behind the
screw / bolt head.
Once the rails are installed and checked for squareand parallel installation, remove the wooden packing
strips.
Trolley tabs on which
Bed platforms rest.
4 if single platform
8 if double platforms
UPPER
MOUNTINGHOLES
LOWER
MOUNTING
HOLES
MOTOR & CONNECTING SHAFT INSTALLATION: - 2 -
Inward Mounting Outward Mounting
Seat opposite
end over
hex shaft.
1
2
Draw hex shaft
into motor until
E-clip is fully
seated against
motor.
3
Tighten Set Screw
1. Motor may be mounted inward or outward.
This is determined by the way the motor
mounting plate is attached. Attach the motor
mounting plate for the desired orientation
using the 4 large countersunk bolts provided.
2. After attaching the motor mounting plate,
attach motor to bed lift system by sliding
motor over the hex shaft at the top of the motor rail (the one with the micro switch wires protruding from the top) and
securing with the two Philips bolts and star washers provided.
3. Make certain that the drive trolleys (lower trolleys) are at the same height on
both sides of trailer.
4. Install cross shaft by sliding open end of shaft over the hex shaft on the side
opposite the motor. Make sure cross shaft is fully seated.
5. Loosen set screw in collar of cross shaft where gold hex shaft protrudes.
6. Draw out hex shaft and insert it into motor until E-clip is seated against motor.
Be sure opposite end of cross shaft remains seated. Note: It may be
necessary to rotate the cross shaft very slightly one way or the other to get the
shaft to engage the motor. Side to side level will be affected no more than ¼”by so doing.
7. Tighten set screw in cross shaft collar.
WIRING THE SYSTEM:
1. Bring +12VDC and Ground from the
RV’s power supply to motor location. (10 gauge multi strand wire)
2. Connect +12 line to the SOLID
WHITE wire of the supplied power
pigtail and the Ground wire to the BLACK STRIPED wire of the pigtail.
3. Run the telephone style (reverse pin
out) RJ-11 cord from the Up/Down
switch location to the motor location.
4. Plug the power pigtail, telephone
switch connector, motor connector,
brake connector, and two micro switch connectors (red plugs) into the
PNP CONTROL MODULE.
5. Secure the control module to the RV
using the mounting holes at each end of module.
6. Install the Up/Down switch assembly
by routing or drill-sawing a 1.5” hole
in wall or cabinet panel where switch is to be mounted, then drawing the
RJ-11 switch cable out through the
hole.
7. Plug the switch cable into the printed circuit board on the back of the switch
then put the switch in place over the
hole, and secure with the screws
provided. Make sure the switch is
positioned such that BOTH screws will grab securely.
CAUTION: Make sure printed circuit
board is not in contact with any
metallic surface or object.
- 3 -
+12 VDC
Chassis Ground
POWER PIGTAIL
CONNECTOR
When holding
the locking tabs toward you, the
wire colors are
the same right
to left.
Same, not opposite order
TESTING THE SYSTEM:
1. While pressing UP ensure that the
trolleys travel upward. If they go down, re-check the orientation of the +12 VDC and
ground connections to the power pig-tail.
2. While running the system upward, toggle the
upper micro-limit switch with a stiff wire or large paper clip. (Test requires 2 people).
Each time the micro-limit switch is
depressed the drive trolley should stop. If
the trolley fails to stop when the switch is
depressed, recheck all connections and +12 and ground wire orientation.
The micro-limit switches are located behind
the two small Phillips screws near the top
and bottom of the rail below the motor.
2. Check the lower micro switch in the same
manner while going down.
3. If the system fails to operate recheck all connections. Also check to see that the
wires punched down into the micro switch
connectors (small red ones) are tightly
secured. Press these firmly in place with a small screwdriver blade if necessary to
ensure that the pins in the connector bite
through the insulation on the wire.
MOVING THE LIMIT SWITCHES:
If desired, the limit switches can be moved from their factory setting to one of the alternate
positions. To reposition the switch, remove the two small Phillips screws, move the switch to the new location and reinstall the screws. CAUTION: Do not over tighten the screws as this
can damage the switch. Tighten slowly just until switch is snug and does not move.
On upper switch, be
sure to move physical stop screws in rail sides as well. (One
on each side of rail adjacent to micro-limit
switch).
Failure to do so will
result in damage to the system.
If the lower micro-limit switch is moved from it’s lowest possible setting, these stops screws must
be added at the new switch location. Screws are a #10 x 3/8 self threading screw.
NOTE: It may be necessary to add wire to
switches to accommodate switch movement.
CRANKING POINT (One on each side)FOR MANUAL OPERATIONMay be covered with yellow caps.
Use ½” hex socket wrench. Cranking is easier if 2 people crank, one on each side of the coach.
Note: Before manually cranking the bed-lift, the brake must be released and the motor unplugged from the PNP Control Module.
EMERGENCY MANUAL OPERATION:
To Manually Lower the bedsDo the following in the order listed:
1. Unplug the motor
2. Release the brake
3. Bed will drift downward.
4. Re-apply break at desired bed height.
5. Reconnect motor lead.
To Manually Raise the beds Do the following in the order listed:
1. Unplug the motor
2. Release the brake
3. Turn hex shaft with ½” ratchet.
4. Re-apply break at desired bed height.
5. Reconnect motor lead.
Brake release for manual operation.
Motor unplugs from
Control Module.(Module location may
be different but will be
in close proximity to motor).
CAUTION: BEFORE RELEASING BRAKE IN MANUAL MODE, MAKE SURE THERE ARE
NO OBSTABLES BELOW THE BED PLATFORMS. KEEP HOLD OF THE BRAKE LEVERAS THE BEDS DECEND AND BE PREPARED TO REAPPLY THE BRAKE IF NECESSARY.